Flushing-valve.



C. S. C. ROCK.

FLUSHING VALVE.

APPLICATION FILED use. a. 1914.

1,163,462. Patented Dec. 7, 1915.

2 SHEETS-SHEET l.

:2 i/VVENTOR Charles SC. Rock ,4 TTORNEYS C. S. C. ROCK.

FLUSHING VALVE.

MPLICATION FILED DEC. 8, 1914- 1.,163A62. Patented Dec. 7, 1915.

2 SHEETSSHEET 2- l/VVE/VTUR Charles 5. C. Rock WITNESSES STATES PA 5; 11111;" 1

FLUSHING-VALVE.

Specification of Letters Patent.

Patented Dec. 7, 1915.

Application filed December 8, 1914. Serial No. 876,045.

To all whom it may concern Be it known that I, HARLns S C. Roma, 2- subject of the King of Great Britain, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Flushing-Valve, of which the following is a full, clear, and exact description.

vide a main valve construction embodying two oppositely disposed valve seats and an internal movable chamber whose walls are adapted to cooperate with said valve seats in alternation.

Another object of the invention is to provide an internal pressure chamber in a device of this character whose capacity is easily adjustable by a simple tool from the outside of the construction whereby the length of the flow through the flushing valve may .be delicately controlled irrespective of the water pressure in the system.

A still further object of the invention is to provide a construction which has combined with it a peculiar form of bumper which, like the flow initiating mechanism, is adapted to be adjusted circumferentially around the vertical axis of the main valve to meet the various local conditions of assemblage.

Another object of the invention is to provide a valve mechanism adapted for different types of flow initiating devices but without material change in the main structure.

The foregoing and many other objects of the invention will hereinafter be more fully described and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference indicate corresponding parts in all the views, and in Which- Figure 1 is a side elevation of the main parts of the device; Fig. 2 is a vertical sectional view; Fig. 3 is a horizontal section on the line 33 of Fig. 2; Fig. 4 is a perspective detail view of the bumper mechanism; Fig. 5

is a vertical sectional view of the lower portion of the mechanism on the line 55 of Fig. 1; Fig. 8 is a similar view but indieating a modification of the flow initiating mechanism; and Fig. 7 is a horizontal sect1on'on the line 7-7 of Fig. 6.

The several parts of this device maybe made of any suitable materials, and the relat1ve s1zes and proportions, as well as the general design of the mechanism, may be varied to a considerable extnt without departing from the spirit of the invention hereinafter more fully described and specifically claimed.

Referring more particularly to the drawings I show at 10 the main body portion of a valve mechanism, the same being shown tapped at 11 to receive the inflow of water from any source of supply into and through said body. The upper or head portion 12 of the body is substantially cylindrical except where intersected by the hub 11. At the top of the head 12 is provided a boss 13 having an internal preferablyleft handed thread. Said boss extends downwardly within the head 12 and is preferably arranged with its axis coinciding with the vertical axis of the main structure. At 13' is shown a vertical extension of the boss 13 reaching above the head and provided also with an exterior thread. Within the head portion of the body 10 is provided a normally open horizontal valve seat 14 through which the flow of water passes into the main valve chamber 15.

The main valve casing terminates at its lower end in an annular shoulder 16 against which is secured a base 17 which constitutes the lower portion of the main boundary for the lower end of the main chamber 15. The base includes a flange 18 having an external thread and through which a collar 19 serves to lock the base to the main body of the valve, a packing gasket 20 being interposed between these parts to make a tightjoint. The base furthermore includes a fixed valve seat 21 which, like the valve seat 14, i held in a rigid position when the parts are assembled as herein set forth, the fixed valve seats being parallel to each other and with their axes in alinement. The seat 21 extends upwardly from the main portion of the base 17 providing an annular pocket 17 constituting a downward extension of the aforesaid main pressure chamber.

It will be observed from the construction thus far described that the base 17 may be adjusted circumferentially with respect to its vertical axis without aifecting the operation of the construction. In other words, the base 17 is symmetricalwith respect to its axis except forthe fiow initiating devices carried thereby.

At 22 I show an internal pressure chamber defined bya rigid inverted cup-like shell 23, into which chamber water may be admitted through a by-pass 24. The lower portion or mouth of the cup 23 1s fitted with valve including a head 32 carrying a gasket 33 seated against the upper end of the nipple. T he diaphragm in normal position is seated against the valve seat 21, and because of the superior water pressure wlthln the internal pressure chamber 22 by reason of' the fact that the inner surface of the diaphragm has a larger effective area against which the water pressure is subjected than that portion of the diaphragm adjacent the pocket 17, the diaphragm remains normally tight upon the valve seat and hence no water can leak either past the release valve or the main valve seat 21. In some cases it is desirableto provide a stem or guidebetween the release valve and the upper end of the cup, the guide being formed upon one member and acting in a hole in the other. I show herein for this purpose a guide 34: connected to the release valve and extending into a hole or pocket 35 formed in the bottom of the cup and reaching upwardly into a stem 36 secured to the cup 23 and having its axis coinciding with the axis of the mam structure. This stem 36 is provided with an external thread corresponding to the internal thread of the boss 13 with which it coiiperates, the stem 36 extending above the .boss and adapted to be operated by a key,

wrench or other suitable tool outside of the main valve structure and preferably above it. At 37 I show a cap surrounding the upper end of the stem 36 and provlding a packing gland therefor, the cap belng threaded at its lower, end to the external thread of the boss extension 13'.

The valve 31 projects normally below the plug 28 and is adapted to be lifted by any suitable flow initiating devices for the purpose of discharging a sufficient amount of the water carried normally within the 1nternal pressure chamber to allow the water pressure in the main pressure chamber to lift and unseat the diaphragm from the main valve seat 21, thus allowing the'mam flow of water to pass between the diaphragm and said valve seat 21-until the internal pressure within the chamber 22 again seats the diaphragm upon the valve seat 21. As.

one means for'lifting the release valve I provide a rock shaft 38 to'which is'secured a double cam 39. The rock shaft is shown.

bearing 41 on the interior of the base 17 and on the opposite side of the base is provided a bearing 42 with apacking gland 43. By reason of the adaptability of the base 17 to be set or adjusted circumferentially, as above described, the rock shaft and handle 40 may be located on any side of the valve construction, and when so seated the operation of the rock shaft in either direction around its aXis will cause one or the other of the cam points to lift the release valve and allow the water to spurt from the internal chamber 22 through the plug 28, such Water passing along the sides of the main portion of the release valve in the usual manner. The handle 40 may be weighted to cause it to assume its normal position by gravity so as to allow the release valve to either reseat itself by reason of the internal water pressure in the chamber 22 or by such pressure in conjunction with the action of a light spring 44 surrounding the guide 34.

By referring to Fig. 2 it will be observed that by rotating the stem 36 to cause the cup 23 to approach the main valve seat 21, the capacity of the internal chamber 22 will be correspondingly reduced. Hence, while the amount of water discharged through the rethe rigid cup 23 constituting the main wall of the internal pressure chamber, this device is practically rigid in the normal operation of the flushing valve. By adjusting the cup 23 upwardly to a moderate extent, the capacity of the internal chamber will be increased, providing for a correspondingly longer flow of the water while flushing and without disturbing the above described action of the diaphragm. The bypass 24 as indicated may be an open feature of relatively large size and does not require an adjusting needle valve or other device to vary the length of flush of the flushing device since the effective as well as the actual internal capacity of the internal compression chamber is varied directly by the action of the stem 36 in moving the cup 23 or main portion of the internal chamber toward or from the valve seat 21. This device is much simpler and hence more reliable than any structure in which a delicate needle valve regulating device is depended upon. The bypass 24 is not liable to become occluded or obstructed by reason of corrosion of the metal, accumulations of sand or other particles, or otherwise. Should it be desirable, however, or necessary to positively shut off the flow of water through the main body of the valve, a continued upward adjustment of the cup 23 will cause the upper portion thereof to seat firmly against the valve seat 14. Inspection or repair of the lower portion 'of the valve mechanism may obviously then be performed, and no water will pass through the body. After such inspection or treatment of the mechanism, the cup 23 and diaphragm will be screwed down as far as necessary to provide for the proper length of flush, the valve seat 14: being restored to its normal open condition.

In Figs. 6 and 7 the initiating devices for the release valve are slightly different in that I provide a plunger 38 adapted to be reciprocated in the bearings 41' and 42. The plunger 38 is provided with a vertical slot 45 through which a key 46 extends and seated normally in a notch 47 and hole 48 at the inner end of the bearing 41. The bearing 41' is shown in the form of a sleeve sweated or otherwise secured rigidly in the closed bearing 41. The key 46 therefore prevents rotation of the plunger and outward displacement thereof by virtue of the cooperation between the rear and the inner end wall of the hole-48. A spring 49 acts upon the plunger to normally force it outward in the position shown in Fig. 6. The outer face of the key is beveled as shown at 46 whereby when the plunger is forced inwardly against the spring 49, the upper end.50 of the key will lift the valve 31 and unseat it, and after the intended operation of the plunger and its return to normal position under the infiuence of the spring 49, the key will be returned to its normal position by the downward action of the valve as above described.

At 51 I show a bumper holder made preferably of metal and including a socket 552 in which is seated a resilient bumper 53 shown best in Fig. 2 and including a flange 54 held within the socket 52 so that it cannot become lost or displaced. The upper end of the holder 51 is provided with a hole 51 whereby it is hung upon the boss extension 13 and the holder thereby is adapted to be placed on either side of the body 12 or at any point intermediate thereof, depending upon the local conditions or adjustment of the toilet structure. The socket portion of the holder is formed to fit against the cyl ndrical surface of the head 12 in any posltlon to which it may be adjusted. The cap 37 is adapted to lock down upon the upper surface of the holder and secure it in the position intended.

I claim:

1. In a flushing valve, the combination of a main body having a pair of valve seats arranged adjacent opposite ends thereof and providing between said seats a main pressure chamber, a movable cup within the main pressure chamber, a diaphragm secured to the periphery of the cup and adapted under normal conditions to bear against one of said valve seats, said cup and diaphragm defining an internal pressure chamber, means to admit water into and from the internal pressure chamber, and supporting and adjusting means for the cup extending through the other of said valve seats and serving to cause the cup to close said other valve seat.

2. In a flushing valve, the combination of a main body portion having adjacent one end a normally open valve seat and includmg a base at the opposite end, said base being adjustable circumferentially of the longitudinal axis of the main body and including a main valve seat arranged parallel to the first mentioned seat, a movable cup.

within the body between the valve seats, a diaphragm having its periphery secured to the periphery of the cup and normally closing the main valve seat, and means holding the cup in rigid position and serving to vary the position thereof with respect to both of said valve seats, said cup and diaphragm constituting valve means adapted to cooperate alternatively-with said seats to control the flow through the said main body portion, substantially as set forth.

3. In a flushing valve, the combination of a main body, means to admit water into the upper end thereof, said upper end having a rigid valve seat perpendicular to the longitudinal axis of the main body, a base secured to the opposite end of the main body and being provided with an annular pocket and a main valve seat having its axis in alinement with the first mentioned valve seat, a rigid movable cup within the main body, a flexible diaphragm secured to the periphery of the cup and together with the cup forming an internal pressure chamber, means to admit water into the cup, a valve acting through the diaphragm to release the water from the cup, and means connected to the cup serving to cause the cup to act as a valve against the first mentioned seat or to cause with a main body portion including a, base rigidly connected to one. end of the body portion and forming therewith a main pressure chamber. said main pressure chamber having an inlet and an outlet arranged in alinement, said base including a valve seat surrounding said outlet, a cup disposed within said main pressure chamber and spaced from the wall thereof, a flexible diaphragm secured to the periphery of the cup and serving as a valve cooperating with the valve seat. said cup and diaphragm providing an internal pressure. chamber, means to deliver water into and from said internal pressure chamber, and means connected to the cup and serving to adjust it bodily toward or from the valve seat and constiluting the sole means to vary the capacity of said internal pressure chamber and length of flush.

In a flushing valve, the combination of a main body portion having an integral valve seat, a base portion secured to the main body and having an integral valve seat, the base being adjustable around the axis thereof and the main body, valve mechanism secured in the main body between the valve seals and adapted to cooperate with either seat to cut oil' the flow through said main body portion, said valve mechanism comprising an internal pressure chamber, means to vary the actual capacity of the pressure chamber to regulate the length of [lush means to deliver water into and out of said internal pressure chamber, said delivery means including a reciprocating release valve projecting into the base portion, flow initiating devices fitted in the base portion and acljuslable therewith around said axis, said devices including a member adapted to unseat the release valve in all positions of adjustment of said base portion.

In testimony whereof I have'signed my name to this specification in the presence of two subscribing witnesses.

CHARLES S. C. ROCK.

Witnesses:

G120. L. BEELER, Plump D. BoLLI-IAUs. 

